AWI products

Discover the lowest profile underdrain system for new filters and retrofits.

AWI’s Phoenix Panel System upgrades existing filter underdrains, eliminating the need for complete underdrain replacement.

AWI offers new filter systems designed for your specific process as well as upgrades to existing packaged filter systems.

The benefits of air scour assisted backwash are well documented and increasingly necessary to optimize filter performance.  The intent of any air scour system is to increase the efficiency of the backwash cycle and improve filter performance.  To maximize filter performance, depth filtration is essential and to sustain a depth filtration process, depth cleaning is required.

AWI Phoenix Backwash Troughs are designed, built and installed for municipal and industrial water treatment facilities.  Fabricated from Stainless Steel or molded from fiberglass reinforced plastic, the Phoenix Backwash Trough has a design that can be adapted and installed into all filter configurations.  Each trough is equipped with adjustable weir plates to provide even flow distribution into the trough during collection of the backwash water after media cleaning.

AWI designs, builds and installs complete, process-specific granular media filtration systems for municipal and industrial applications.  Types of systems include: Open Top Gravity Filtration Systems, Vertical Pressure Filtration Systems, Horizontal Pressure Filtration Systems.

AWI is an expert in granular media filtration technology.  Our technical capabilities, products and services can improve the granular media filtration process in both industrial and municipal water and wastewater treatment plants.

AWI’s Silica Sand is carefully selected, double-washed, dried, and double screened to specific sizes to meet the demanding conditions present in filtration systems. The filter sand is custom-sized to ensure media compatibility during filtering and backwashing cycles. AWI’s Silica sand meets or exceeds all American Water Works specifications AWWA-B100 standards (latest edition).

AWI can provide a wide range of filter nozzle types with various slot sizes and air metering tubes. We provide technical sales assistance for all types of strainer nozzles, including polypropylene and stainless steel.

AWI Granular Activated Coal (GAC) is a premium grade granular carbon. AWI GAC is specially produced with a broad range of pore sizes to enhance absorption of colour bodies and organic impurities from process streams. GAC is acceptable for food and pharmaceutical applications. It is also used for purifications of acids, caustic liquors, plasticizers, soda ash, fatty acids, and other applications. GAC can be subject to the rigors of hydraulic transfer and thermal reactivation while maintaining minimal losses.
AWI GAC is made from a select grade of coal which is milled, compacted sized and thermally steam activated to yield a strong dense product with a large surface area. The pore structure is carefully controlled during the activation process to facilitate absorption of both high and low molecular weight organic impurities.